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Hemitrygon akajei (Müller & Henle, 1841)

Whip stingray
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Hemitrygon akajei
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Klassifizierung / Names Namen | Synonyme | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (Haie und Rochen) (sharks and rays) > Myliobatiformes (Stingrays) > Dasyatidae (Stingrays) > Dasyatinae
  More on authors: Müller & Henle.

Environment: milieu / climate zone / depth range / distribution range Ökologie

; seewasser; brackwasser demersal; ozeanodrom (Ref. 51243); tiefenbereich 10 - ? m (Ref. 12951).   Subtropical; 43°N - 23°N (Ref. 114953)

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Northwest Pacific: central China to northern Japan.

Length at first maturity / Size / Gewicht / Alter

Maturity: Lm 44.0  range ? - ? cm
Max length : 200 cm TL Männchen/unbestimmt; (Ref. 637); common length : 100.0 cm TL Männchen/unbestimmt; (Ref. 637); max. veröff. Gewicht: 10.7 kg (Ref. 40637)

Kurzbeschreibung Morphologie | Morphometrie

Disc rhomboid, anterior margin straight, posterior margin convex. Snout triangular and slightly produced. dorsal keel present on tail. Adults with small spines on disc and posterior part of tail. Brown dorsally and some with orangish pectoral fin margins, in front of eyes, behind spiracles, on the sides of the tail just anterior to the sting. Ventrum orangish red.

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Found in coral reefs and estuarine areas, on sand and mud bottoms (Ref. 12951, 11230). Feeds on small fishes and crustaceans (Ref. 9840). Ovoviviparous with litters of only 1 pup (Ref. 114953) while earlier estimates indicated production of up to 10 in a litter (Ref. 12951). Caught occasionally by bottom trawl fisheries operating inshore. Utilized for its meat but of limited value due to its small size (Ref.58048). Served in 'miso' soup, hard boiled with seasonings, or for 'kamaboko' material (Ref. 637).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). Distinct pairing with embrace (Ref. 205).

Hauptreferenz Upload your references | Referenzen | Koordinator : McEachran, John | Partner

Last, P.R., W.T. White, M.R. de Carvalho, B. Séret, M.F.W. Stehmann and G.J.P. Naylor, 2016. Rays of the world. CSIRO Publishing, Comstock Publishing Associates. i-ix + 1-790. (Ref. 114953)

IUCN Rote Liste Status (Ref. 120744)

  Gefährdung zunehmend (NT) ; Date assessed: 02 February 2006

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Venomous (Ref. 637)





Nutzung durch Menschen

Fischereien: kommerziell; Aquarium: Kommerziell
FAO(Fischereien: production; publication : search) | FishSource | Sea Around Us

Mehr Information

Länder
FAO Gebiete
Ecosystems
Vorkommen
Einführungen
Stocks
Ökologie
Nahrung
Nahrungsorganismen
Nahrungsaufnahme
Nahrungsmenge
Namen
Synonyme
Metabolismus
Räuber
Ökotoxikologie
Fortpflanzung
Geschlechtsreife
Ablaichen
Spawning aggregation
Fecundity
Eier
Eientwicklung
Alter/Größe
Wachstum
Länge-Gewicht
Länge-Länge
Längenhäufigkeiten
Morphometrie
Morphologie
Larven
Larven Pop.Dyn.
Rekrutierung
Dichte
Referenzen
Aquakultur
Aquakultur Profil
Zuchtlinien
Genetik
Allel-Häufigkeiten
Vererbbarkeit
Krankheiten
Verarbeitung
Mass conversion
Partner
Bilder
Stamps, Coins Misc.
Laute
Ciguatera
Geschwindigkeit
Schwimmstil
Kiemenoberfläche
Otoliths
Gehirngröße
Sehfähigkeit

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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 21.4 - 29, mean 28.1 (based on 510 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5010   [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic Level (Ref. 69278):  3.8   ±0.58 se; Based on food items.
Widerstandsfähigkeit (Ref. 69278):  niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (K=0.1; Fec=1).
Verwundbarkeit (Ref. 59153):  High to very high vulnerability (74 of 100) .
Preiskategorie (Ref. 80766):   Medium.